#http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cnam
#post请求
#cname	"北京"
#pid	""
#pageIndex	"2"
#pageSize	"10"

import urllib.request
import urllib.parse

def create_request(page):
    base_url = 'http://www.kfc.com.cn/kfccda/ashx/GetStoreList.ashx?op=cname'
    data = {
        'cname':'北京',
        'pid' :	'',
        'pageIndex':page,
        'pageSize':'10'
    }
    data = urllib.parse.urlencode(data).encode('utf-8')
    headers = {'User-Agent':
                   'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0'}
    request = urllib.request.Request(url=base_url,headers=headers,data=data)
    return request

def get_content(request):
    response = urllib.request.urlopen(request)
    content = response.read().decode('utf-8')
    return content

def down_load(page,content):
    with open('kfc_'+str(page)+'.json','w',encoding='utf-8')as fp:
        fp.write(content)

if __name__ == '__main__':
    start_page = int(input('请输入起始页码'))
    end_page = int(input('请输入结束页码'))

    for page in range(start_page,end_page+1):
        #请求对象定制
        request =  create_request(page)
        #获取网页源码
        content = get_content(request)
        #下载
        down_load(page,content)
